header{
    min-width: 100%;
    padding: 20px;
    box-shadow: 0 3px 3px rgb(242, 148, 6);
}
header::after{
    content: '';
    display: block;
    clear: both;
}
header div{
    float: left;
}
header div.title{
    
    text-align: center;
    height: 45px;
    width: 85%;
    line-height: 45px;
    color: rgb(242, 148, 6);
    font-size: 20px;
    font-weight: bolder;
}
header div.right{
    float: right;
    text-align: center;
    line-height: 45px;
}




#no1{

    width: 5%;
    height: 45px;
    background-image: url('./img/i_head4.png');
    background-position: -20px -30px;
}

div.radius{
    background-color: dodgerblue;
    border-radius: 23px 0 0 23px;
    width: 10%;
    height: 45px;
}
section.main input{
    margin:10px;
    width: 95%;
    padding: 10px;
    height: 100px;
    border-radius:5px;
    border: 1px solid #ccc;
}
ul.nav{
    width: 100%;
    height: 30px;
    list-style: none;
    text-align: center;
    border-bottom: 2px solid #ccc;
    
}
ul.nav li{
    width: 33%;
    text-align: center;
    height: 30px;
    line-height: 30px;
    display: inline-block;
}
ul.nav li a{
    text-decoration: none;
    color: #8a8a8a;
    font-size: 18px;
}
ul.nav li a:hover{
    color: rgb(242, 148, 6);
    border-bottom: 4px solid   rgb(242, 148, 6);
}
section.mid-con div.title{
 
    border-top:2px solid  rgb(242, 148, 6);
}
section.mid-con div.title p{
    display: block;
    margin-top: -16px;
    background: white;
    width: 200px;
    border-left: 4px solid   rgb(242, 148, 6);
    padding-left: 20px;
    font-size: 15px;
}
section.mid-con div.title span.jc{
    font-size: 20px;
    font-weight: bold;
}
section.mid-con div.pics ul::after{
    content: '';
    display: block;
    clear: both;
}
section.mid-con div.pics ul li{
    list-style: none;
    width: 31.1%;
    float: left;
    position: relative;
    margin: 10px;
}
section.mid-con div.pics ul li img{
   width: 100%
}
section.mid-con div.pics ul li span{
    position: absolute;
    width: 40%;
    bottom: 10px;
    left: 0px;
    background: rgba(0,0,0,0.5);
    color: white;
    font-size: 18px;
    height: 30px;
    line-height: 30px;
    border-radius: 10px;
}